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Cube Reaction HPA SL 27.5 Side-Swing Frame black´n´blueThe Reaction HPA SL 27.5 frame offers maximum performance and highest quality in an extraordinarily high-class design.
High-quality aluminium frame: Cube Reaction HPA SL Side-Swing Frame 27.5 in black´n´blueThe Reaction HPA (it stands for High Performance Aluminium) uses a triple butted 7005 aluminium frame manufactured with a complex, advanced hydroforming techcnique. Agile Ride Geometry blends uncompromising efficiency for forward propulsion with lively, playful handling. Every detail has a function. The tapered head tube, X12 axle at the rear and the PressFit bottom bracket shell all work together with the cross-ovalised down tube to provide optimum power transmission, precise steering and phenomenal acceleration. Slender seat stays and the 27.2mm diamater seat post give added comfort.
Designed specifically with modern trail bikes in mind, Shimano’s Side-Swing front derailleur provides 15mm of increased tire clearance, while new cable routing dramatically reduces shifting effort. Designed for larger wheels and longer travel, brings Shimano’s industry-leading front shifting to another level.
Product features - Reaction HPA SL 27.5 Side-Swing Frame black´n´blue
- Material: HPA Superlite, Aluminum 7005 Triple Butted, ARG, Tapered Headtube, Internal Cable Routing, PressFit BB, X12
- Seat post: 27.2mm
- Seat clamp: 31.8mm
- Front deraileur: Direct Mount Side-Swing (Only compatible with Direct Mount Side-Swing front deraileur!)
- Headtube diameter: Tapered 1 1/8" (ZS 44mm) semi-integrated - 1 1/2" (IS 52mm) integrated
- Bottom bracket housing: PressFit 92mm
- Disc brake mount rear: IS2000
- Wheel size: 27.5"
- Recommended Fork Travel: 100mm
- Dropout: Thru Axle X12 (12x142mm)
- Derailleur Hanger: Only compatible with Shimano rear derailleur!
- 1780g (18")
Scope of delivery
- 1 Cube Reaction HPA SL 27.5 Side-Swing Frame black'n'blue
TechnologiesAdvanced Mechanical Forming
With our Advanced Mechanical Forming technology we can mechanically transform different frame tubes and thus optimize them without material-wearing welding work for the respective requirements. Along the obtained organic look, the production method is primarily motivated by functional reasons. Multiple converted tubes enable us to manufacture lighter and also stiffer aluminum frames.
Agile Ride Geometry
We ran innumerable tests to develop the Agile Ride Geometry in our series of big wheel bikes. We also added the 27.5in wheel size to the very well received portfolio. Three important details lead to the very agile character. Increased fork offsets let us achieve the same trail as our 26in bikes without having to steepen the head angle, thus maintaining generous toe clearance to the front wheel. Secondly we shortened the chain stays without compromising the seat angle. We invented a patented construction to mount the front derailleur to give us more tyre clearance while keeping a conventional seat angle, leading to a perfect riding position for every rider size. Last but not least we kept the BB height the same as on our 26in bikes. These measures lead to a natural riding position. Every mountain biker will feel immediately at home on a CUBE 29er or 27.5.
High Performance Aluminum
For our high end bikes we use High Performance 7005 Aluminium alloy which has a very low density combined with high strength due to the alloy elements and the hardening heat treatment. By triple butting or even quadruple butting (as in the REACTION , HANZZ and AERIUM models) to give different wall thicknesses in one tube, aluminium tubes are reinforced where required and made lighter where possible. In this way, we succeed in getting material where its needed most. In addition we use special tube shapes, manufactured with hydroforming technology to better cope with directional forces. The low density and high strength as well as the butting and the hydroforming technology enable us to make high performance frames with an ultimate level of stiffness.
Integrated Cable Routing
Internally routed cables offer many advantages. Cables are protected from dirt for longer life, weight is saved thanks to the absence of external housing and the bike has a clean, sleek appearance.
Anodizing is a chemical surface treatment process. The treatment hardens the surface, making the aluminium 1000 times more scratch-resistant than before.
Welded joints in our high-quality aluminum frames are specially finished via this method and create the impresssion of seamless tube design. This generates the visual effect of moulding and ensures high load bearing capacity.
Press Fit BB
With Press Fit bearings, the bottom bracket bearings are pressed directly into the frame and not screwed in as usual. This gives a wider bottom bracket shell and allows us to build a wider down tube and more broadly-spaced chainstays. Every millimetre of additional width gives a significant improvement in lateral stiffness.
This steerer tube design is stiffer than a conventional straight steerer and yields a more secure ride feel even in difficult terrain. Minimal flex at the front of the frame means the greatest possible steering precision. With the larger steerer, the forks become more rigid. At the same time weight is saved due to the absence of bearing shells as the lower bearing is fully integrated into the head tube. On all of our CUBE carbon models the upper bearing shells are also directly in the frame, so that once more a few grams are saved and the energy transfer is very direct.
Adaptable X12 Hanger
We optimized our new dropout design based on the Syntace X12 through-axle system, enlarging the area of the frame where the hanger is mounted. We can now fit the longer Direct Mount hangers. Shifting precision and stiffness is therefore improved. With the new design it's also possible to swap the whole contact area of the axle with the hanger should the system be worn out.
Nikolaj K.Comment:Ein wunderbarer Rahmen, es ist schade, dass Sie aufgehört haben, nach Russland zu verkaufen. Derzeit hat die Familie drei Fahrrad Cube. Da sein Fahrrad modernisiert, wollte Attention Ehepartner aktualisieren, warum solche Schwierigkeiten?